diff options
Diffstat (limited to 'erts/emulator/beam/utils.c')
| -rw-r--r-- | erts/emulator/beam/utils.c | 178 |
1 files changed, 43 insertions, 135 deletions
diff --git a/erts/emulator/beam/utils.c b/erts/emulator/beam/utils.c index 19b1312ee3..c5deed38ad 100644 --- a/erts/emulator/beam/utils.c +++ b/erts/emulator/beam/utils.c @@ -1946,7 +1946,7 @@ do_allocate_logger_message(Eterm gleader, ErtsMonotonicTime *ts, Eterm *pid, else sz += MAP4_SZ /* metadata map w gl w pid*/; - *ts = ERTS_MONOTONIC_TO_USEC(erts_get_monotonic_time(NULL) + erts_get_time_offset()); + *ts = ERTS_MONOTONIC_TO_USEC(erts_os_system_time()); erts_bld_sint64(NULL, &sz, *ts); *bp = new_message_buffer(sz); @@ -2615,27 +2615,6 @@ not_equal: } -/* - * Lexically compare two strings of bytes (string s1 length l1 and s2 l2). - * - * s1 < s2 return -1 - * s1 = s2 return 0 - * s1 > s2 return +1 - */ -static int cmpbytes(byte *s1, int l1, byte *s2, int l2) -{ - int i; - i = 0; - while((i < l1) && (i < l2)) { - if (s1[i] < s2[i]) return(-1); - if (s1[i] > s2[i]) return(1); - i++; - } - if (l1 < l2) return(-1); - if (l1 > l2) return(1); - return(0); -} - /* * Compare objects. @@ -2649,20 +2628,6 @@ static int cmpbytes(byte *s1, int l1, byte *s2, int l2) * */ - -#define float_comp(x,y) (((x)<(y)) ? -1 : (((x)==(y)) ? 0 : 1)) - -int erts_cmp_atoms(Eterm a, Eterm b) -{ - Atom *aa = atom_tab(atom_val(a)); - Atom *bb = atom_tab(atom_val(b)); - int diff = aa->ord0 - bb->ord0; - if (diff) - return diff; - return cmpbytes(aa->name+3, aa->len-3, - bb->name+3, bb->len-3); -} - /* cmp(Eterm a, Eterm b) * For compatibility with HiPE - arith-based compare. */ @@ -2673,22 +2638,6 @@ Sint cmp(Eterm a, Eterm b) Sint erts_cmp_compound(Eterm a, Eterm b, int exact, int eq_only); -Sint erts_cmp(Eterm a, Eterm b, int exact, int eq_only) -{ - if (is_atom(a) && is_atom(b)) { - return erts_cmp_atoms(a, b); - } else if (is_both_small(a, b)) { - return (signed_val(a) - signed_val(b)); - } else if (is_float(a) && is_float(b)) { - FloatDef af, bf; - GET_DOUBLE(a, af); - GET_DOUBLE(b, bf); - return float_comp(af.fd, bf.fd); - } - return erts_cmp_compound(a,b,exact,eq_only); -} - - /* erts_cmp(Eterm a, Eterm b, int exact) * exact = 1 -> term-based compare * exact = 0 -> arith-based compare @@ -2985,7 +2934,7 @@ tailrecur_ne: GET_DOUBLE(a, af); GET_DOUBLE(b, bf); - ON_CMP_GOTO(float_comp(af.fd, bf.fd)); + ON_CMP_GOTO(erts_float_comp(af.fd, bf.fd)); } case (_TAG_HEADER_POS_BIG >> _TAG_PRIMARY_SIZE): case (_TAG_HEADER_NEG_BIG >> _TAG_PRIMARY_SIZE): @@ -3022,10 +2971,7 @@ tailrecur_ne: ErlFunThing* f2 = (ErlFunThing *) fun_val(b); Sint diff; - diff = cmpbytes(atom_tab(atom_val(f1->fe->module))->name, - atom_tab(atom_val(f1->fe->module))->len, - atom_tab(atom_val(f2->fe->module))->name, - atom_tab(atom_val(f2->fe->module))->len); + diff = erts_cmp_atoms((f1->fe)->module, (f2->fe)->module); if (diff != 0) { RETURN_NEQ(diff); } @@ -3122,7 +3068,7 @@ tailrecur_ne: ASSERT(alen == blen); for (i = (Sint) alen - 1; i >= 0; i--) if (anum[i] != bnum[i]) - RETURN_NEQ((Sint32) (anum[i] - bnum[i])); + RETURN_NEQ(anum[i] < bnum[i] ? -1 : 1); goto pop_next; case (_TAG_HEADER_EXTERNAL_REF >> _TAG_PRIMARY_SIZE): if (is_internal_ref(b)) { @@ -3219,7 +3165,7 @@ tailrecur_ne: if (f2.fd < MAX_LOSSLESS_FLOAT && f2.fd > MIN_LOSSLESS_FLOAT) { /* Float is within the no loss limit */ f1.fd = signed_val(aw); - j = float_comp(f1.fd, f2.fd); + j = erts_float_comp(f1.fd, f2.fd); } #if ERTS_SIZEOF_ETERM == 8 else if (f2.fd > (double) (MAX_SMALL + 1)) { @@ -3266,7 +3212,7 @@ tailrecur_ne: if (big_to_double(aw, &f1.fd) < 0) { j = big_sign(aw) ? -1 : 1; } else { - j = float_comp(f1.fd, f2.fd); + j = erts_float_comp(f1.fd, f2.fd); } } else { big = double_to_big(f2.fd, big_buf, sizeof(big_buf)/sizeof(Eterm)); @@ -3282,7 +3228,7 @@ tailrecur_ne: if (f1.fd < MAX_LOSSLESS_FLOAT && f1.fd > MIN_LOSSLESS_FLOAT) { /* Float is within the no loss limit */ f2.fd = signed_val(bw); - j = float_comp(f1.fd, f2.fd); + j = erts_float_comp(f1.fd, f2.fd); } #if ERTS_SIZEOF_ETERM == 8 else if (f1.fd > (double) (MAX_SMALL + 1)) { @@ -3735,30 +3681,47 @@ erts_unicode_list_to_buf_len(Eterm list) } } -/* -** Convert an integer to a byte list -** return pointer to converted stuff (need not to be at start of buf!) -*/ -char* Sint_to_buf(Sint n, struct Sint_buf *buf) +/* Prints an integer in the given base, returning the number of digits printed. + * + * (*buf) is a pointer to the buffer, and is set to the start of the string + * when returning. */ +int Sint_to_buf(Sint n, int base, char **buf, size_t buf_size) { - char* p = &buf->s[sizeof(buf->s)-1]; - int sign = 0; - - *p-- = '\0'; /* null terminate */ - if (n == 0) - *p-- = '0'; - else if (n < 0) { - sign = 1; - n = -n; + char *p = &(*buf)[buf_size - 1]; + int sign = 0, size = 0; + + ASSERT(base >= 2 && base <= 36); + + if (n == 0) { + *p-- = '0'; + size++; + } else if (n < 0) { + sign = 1; + n = -n; } while (n != 0) { - *p-- = (n % 10) + '0'; - n /= 10; + int digit = n % base; + + if (digit < 10) { + *p-- = '0' + digit; + } else { + *p-- = 'A' + (digit - 10); + } + + size++; + + n /= base; } - if (sign) - *p-- = '-'; - return p+1; + + if (sign) { + *p-- = '-'; + size++; + } + + *buf = p + 1; + + return size; } /* Build a list of integers in some safe memory area @@ -4825,58 +4788,3 @@ erts_ptr_id(void *ptr) return ptr; } -#ifdef DEBUG -/* - * Handy functions when using a debugger - don't use in the code! - */ - -void upp(byte *buf, size_t sz) -{ - bin_write(ERTS_PRINT_STDERR, NULL, buf, sz); -} - -void pat(Eterm atom) -{ - upp(atom_tab(atom_val(atom))->name, - atom_tab(atom_val(atom))->len); -} - - -void pinfo() -{ - process_info(ERTS_PRINT_STDOUT, NULL); -} - - -void pp(p) -Process *p; -{ - if(p) - print_process_info(ERTS_PRINT_STDERR, NULL, p); -} - -void ppi(Eterm pid) -{ - pp(erts_proc_lookup(pid)); -} - -void td(Eterm x) -{ - erts_fprintf(stderr, "%T\n", x); -} - -void -ps(Process* p, Eterm* stop) -{ - Eterm* sp = STACK_START(p) - 1; - - if (stop <= STACK_END(p)) { - stop = STACK_END(p) + 1; - } - - while(sp >= stop) { - erts_printf("%p: %.75T\n", sp, *sp); - sp--; - } -} -#endif |